>Can anyone explain please what is a backplane design, and how is it
>diffrant from mother-board design?
Well, there have been other posts about Zenith machines... but here goes...
A motherboard-based design has, as I'm sure you realise, the CPU and supporting
logic, memory, maybe I/O, additional (multimedia) I/O circuits on one board,
which might have connectors, to which the user can connect expansion circuitry.
However, a backplane design hasn't got much on the main board except for a set
of slots and maybe the power circuitry. The individual components (maybe the
CPU, the memory, sound card, I/O controller, graphics adapter) all sit on their
own card, which plugs into the backplane board. This makes it easier to
upgrade the machine for a start - when the CPU is upgraded, you don't need a
new motherboard, it just connects to the main bus that already exists and has
all the devices hanging off it. It also means that any component can be
replaced when it breaks much more easily.
>> (I quite liked Apple until they came up with the Mac. The Lisa was
>> a cool machine.)
>
>Maybe, but it was also extremly costly.
Yeah - most of them can now be found in various landfill sites... Pity
though - they could've been very popular if they'd been priced sensibly.
Regards, Home page: http://www.geocities.com/SiliconValley/Horizon/8786
Ben A L Jemmett ICQ: 9848866 JGSD e-mail: [EMAIL PROTECTED]
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